package cn.itcast.directory;
import android.content.ContentValues;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.RadioGroup;
import android.widget.RadioButton;
import android.widget.TextView;
import android.widget.Toast;

import pl.com.salsoft.sqlitestudioremote.SQLiteStudioService;


public class MainActivity extends AppCompatActivity implements
    View.OnClickListener {
        MyHelper myHelper;
        private EditText mEtName;
        private EditText mEtPhone;
        private RadioGroup mEtSex;
        private TextView mTvShow;
        private Button mBtnAdd;
        private Button mBtnQuery;
        private Button mBtnUpdate;
        private Button mBtnDelete;
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
            SQLiteStudioService.instance().start(this);
            myHelper = new MyHelper(this);
            init();//初始化控件

    }
    private void init() {
        mEtName = (EditText) findViewById(R.id.et_name);
        mEtPhone = (EditText) findViewById(R.id.et_phone);
        mEtSex = (RadioGroup) findViewById(R.id.et_sex);
        mTvShow = (TextView) findViewById(R.id.tv_show);
        mBtnAdd = (Button) findViewById(R.id.btn_add);
        mBtnQuery = (Button) findViewById(R.id.btn_query);
        mBtnUpdate = (Button) findViewById(R.id.btn_update);
        mBtnDelete = (Button) findViewById(R.id.btn_delete);
        mBtnAdd.setOnClickListener(this);
        mBtnQuery.setOnClickListener(this);
        mBtnUpdate.setOnClickListener(this);
        mBtnDelete.setOnClickListener(this);
    }
    @Override
    // 点击操作按钮
    public void onClick(View v) {
        String name;
        String phone;
        CharSequence sex;
        SQLiteDatabase db;
        ContentValues values;
        switch (v.getId()) {
            case R.id.btn_add: //添加数据
                name = mEtName.getText().toString();
                phone = mEtPhone.getText().toString();
                sex = null;

                /** 获取单选框 */
                for (int i = 0; i < mEtSex.getChildCount(); i++) {
                    RadioButton rd = (RadioButton) mEtSex.getChildAt(i);
                    if (rd.isChecked()) {
                        sex = rd.getText();
                        break;
                    }
                }

                /** 校验是否为空 */
                if (mEtName.getText().toString()==null || mEtName.getText().toString().equals("")) {
                    Toast.makeText(this, "请输入姓名", Toast.LENGTH_SHORT).show();
                    return;
                }
                if (mEtPhone.getText().toString()==null || mEtPhone.getText().toString().equals("")) {
                    Toast.makeText(this, "请输入手机", Toast.LENGTH_SHORT).show();
                    return;
                }
                if (mEtSex.getCheckedRadioButtonId() == -1) {
                    Toast.makeText(this, "请选择性别", Toast.LENGTH_SHORT).show();
                    return;
                }

                db = myHelper.getWritableDatabase();//获取可读写SQLiteDatabse对象
                values = new ContentValues();       // 创建ContentValues对象
                values.put("name", name);           // 将数据添加到ContentValues对象
                values.put("phone", phone);
                values.put("sex", (String) sex);
                db.insert("information", null, values);
                Toast.makeText(this, "信息已添加", Toast.LENGTH_SHORT).show();
                db.close();
                break;
            case R.id.btn_query: //查询数据

                Intent intent = new Intent(this, Main2Activity.class);
                startActivity(intent);


//                db = myHelper.getReadableDatabase();
//                Cursor cursor = db.query("information", null, null, null, null,
//                        null, null);
//                if (cursor.getCount() == 0) {
//                    mTvShow.setText("");
//                    Toast.makeText(this, "没有数据", Toast.LENGTH_SHORT).show();
//                } else {
//                    cursor.moveToFirst();
//                    mTvShow.setText("Name :  " + cursor.getString(1) +
//                            "  ；Tel :  " + cursor.getString(2) + "  ；Sex :  " + cursor.getString(3));
//                }
//                while (cursor.moveToNext()) {
//                    mTvShow.append("\n" + "Name :  " + cursor.getString(1) +
//                            "  ；Tel :  " + cursor.getString(2) + "  ；Sex :  " + cursor.getString(3));
//                }
//                cursor.close();
//                db.close();
                break;
            case R.id.btn_update: //修改数据
                db = myHelper.getWritableDatabase();
                values = new ContentValues();       // 要修改的数据
                values.put("phone", phone = mEtPhone.getText().toString());
                db.update("information", values, "name=?",
                        new String[]{mEtName.getText().toString()}); // 更新并得到行数
                Toast.makeText(this, "信息已修改", Toast.LENGTH_SHORT).show();
                db.close();
                break;
            case R.id.btn_delete: //删除数据
                db = myHelper.getWritableDatabase();
                db.delete("information", null, null);
                Toast.makeText(this, "信息已删除", Toast.LENGTH_SHORT).show();
                mTvShow.setText("");
                db.close();
                break;
        }
    }
    class MyHelper extends SQLiteOpenHelper {
        public MyHelper(Context context) {
            super(context, "itcast.db", null, 1);
        }
        @Override
        public void onCreate(SQLiteDatabase db) {
        }
        @Override
        public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
        }
    }
}
